9731620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{991}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 20498688

約数和(自身を除く): 10767068

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 991, 1964, 1982, 2455, 3964, 4910, 4955, 9820, 9910, 19820, 486581, 973162, 1946324, 2432905, 4865810, 9731620]

約数ペア:

[(1, 9731620), (2, 4865810), (4, 2432905), (5, 1946324), (10, 973162), (20, 486581), (491, 19820), (982, 9910), (991, 9820), (1964, 4955), (1982, 4910), (2455, 3964)]